摘要
为满足高分子材料在防静电包装领域的需求,以高定向热解石墨为原料,应用电化学法剥离、冷冻干燥成石墨烯粉末,采用热压法制备石墨烯基聚丙烯(PP)防静电材料。利用SEM、HRTEM、AFM和XRD表征石墨烯微观组织,并对防静电材料进行导电性能与拉伸强度测试。结果表明:制备的石墨烯呈现薄纱状结构,层数少(1~10层),厚度为2 nm,层间距为0.4 nm;复合材料导电率可达341.25 S/m,拉伸强度最高可达28.22 MPa。该新型石墨烯基复合材料既能满足防静电需求,又能提高基体材料的拉伸强度。
This paper is a response to the requirements of polymer materials in antistatic materials. The research involves selecting Highly Oriented Pyrolytic Graphite （HOPG） as the raw material to yield individual graphene sheets by electrochemical method and method; characterizing the microstructure of graphene （GE） high resolution transmission electron microscopy （HRTEM）, drying them into powder by lyophilization by scanning electron microscopy （ SEM ）, atomic force microscopy （AFM） and X-ray diffraction（XRD） ; and preparing the graphene/PP antistatic composite materials by hot molding and e- lectrical conductivity measurements and tensile tests. The investigation results show that GE which exhib- its the microstrueture just like the tulle has films of graphene with regions of 1 - 10 graphene layers, the thickness of GE flim of about 2 nm, and the slice gap of GE of 0.4 nm and this composite has a conduc- tivity of 341.25 S/m and a tensile strength of 28.22 MPa. The composite material could not only meet the needs of antistatic, but also improve the tensile strength of the matrix material.
出处
《黑龙江科技大学学报》
CAS
2017年第4期429-432,共4页
Journal of Heilongjiang University of Science And Technology
基金
哈尔滨市应用技术研究与开发项目(2015RQXXJ004)
关键词
石墨烯
防静电材料
电化学
graphene
antistatic materials
electrochemical
